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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "net/tools/quic/quic_server_session.h"
#include "net/quic/crypto/quic_crypto_server_config.h"
#include "net/quic/crypto/quic_random.h"
#include "net/quic/quic_connection.h"
#include "net/quic/test_tools/quic_connection_peer.h"
#include "net/quic/test_tools/quic_data_stream_peer.h"
#include "net/quic/test_tools/quic_test_utils.h"
#include "net/tools/epoll_server/epoll_server.h"
#include "net/tools/quic/quic_spdy_server_stream.h"
#include "net/tools/quic/test_tools/quic_test_utils.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
using __gnu_cxx::vector;
using net::test::MockConnection;
using net::test::QuicConnectionPeer;
using net::test::QuicDataStreamPeer;
using testing::_;
using testing::StrictMock;
namespace net {
namespace tools {
namespace test {
class QuicServerSessionPeer {
public:
static QuicDataStream* GetIncomingReliableStream(
QuicServerSession* s, QuicStreamId id) {
return s->GetIncomingReliableStream(id);
}
static QuicDataStream* GetDataStream(QuicServerSession* s, QuicStreamId id) {
return s->GetDataStream(id);
}
};
class CloseOnDataStream : public QuicDataStream {
public:
CloseOnDataStream(QuicStreamId id, QuicSession* session)
: QuicDataStream(id, session) {
}
virtual bool OnStreamFrame(const QuicStreamFrame& frame) OVERRIDE {
session()->MarkDecompressionBlocked(1, id());
session()->CloseStream(id());
return true;
}
virtual uint32 ProcessData(const char* data, uint32 data_len) OVERRIDE {
return 0;
}
};
class TestQuicQuicServerSession : public QuicServerSession {
public:
TestQuicQuicServerSession(const QuicConfig& config,
QuicConnection* connection,
QuicSessionOwner* owner)
: QuicServerSession(config, connection, owner),
close_stream_on_data_(false) {
}
virtual QuicDataStream* CreateIncomingDataStream(
QuicStreamId id) OVERRIDE {
if (!ShouldCreateIncomingDataStream(id)) {
return NULL;
}
if (close_stream_on_data_) {
return new CloseOnDataStream(id, this);
} else {
return new QuicSpdyServerStream(id, this);
}
}
void CloseStreamOnData() {
close_stream_on_data_ = true;
}
private:
bool close_stream_on_data_;
};
namespace {
class QuicServerSessionTest : public ::testing::Test {
protected:
QuicServerSessionTest()
: crypto_config_(QuicCryptoServerConfig::TESTING,
QuicRandom::GetInstance()) {
config_.SetDefaults();
config_.set_max_streams_per_connection(3, 3);
connection_ = new MockConnection(true);
session_.reset(new TestQuicQuicServerSession(
config_, connection_, &owner_));
session_->InitializeSession(crypto_config_);
visitor_ = QuicConnectionPeer::GetVisitor(connection_);
}
void MarkHeadersReadForStream(QuicStreamId id) {
QuicDataStream* stream = QuicServerSessionPeer::GetDataStream(
session_.get(), id);
ASSERT_TRUE(stream != NULL);
QuicDataStreamPeer::SetHeadersDecompressed(stream, true);
}
StrictMock<MockQuicSessionOwner> owner_;
MockConnection* connection_;
QuicConfig config_;
QuicCryptoServerConfig crypto_config_;
scoped_ptr<TestQuicQuicServerSession> session_;
QuicConnectionVisitorInterface* visitor_;
};
TEST_F(QuicServerSessionTest, CloseStreamDueToReset) {
// Open a stream, then reset it.
// Send two bytes of payload to open it.
QuicStreamFrame data1(3, false, 0, MakeIOVector("HT"));
vector<QuicStreamFrame> frames;
frames.push_back(data1);
EXPECT_TRUE(visitor_->OnStreamFrames(frames));
EXPECT_EQ(1u, session_->GetNumOpenStreams());
// Pretend we got full headers, so we won't trigger the 'unrecoverable
// compression context' state.
MarkHeadersReadForStream(3);
// Send a reset.
QuicRstStreamFrame rst1(3, QUIC_STREAM_NO_ERROR);
visitor_->OnRstStream(rst1);
EXPECT_EQ(0u, session_->GetNumOpenStreams());
// Send the same two bytes of payload in a new packet.
EXPECT_TRUE(visitor_->OnStreamFrames(frames));
// The stream should not be re-opened.
EXPECT_EQ(0u, session_->GetNumOpenStreams());
}
TEST_F(QuicServerSessionTest, NeverOpenStreamDueToReset) {
// Send a reset.
QuicRstStreamFrame rst1(3, QUIC_STREAM_NO_ERROR);
visitor_->OnRstStream(rst1);
EXPECT_EQ(0u, session_->GetNumOpenStreams());
// Send two bytes of payload.
QuicStreamFrame data1(3, false, 0, MakeIOVector("HT"));
vector<QuicStreamFrame> frames;
frames.push_back(data1);
// When we get data for the closed stream, it implies the far side has
// compressed some headers. As a result we're going to bail due to
// unrecoverable compression context state.
EXPECT_CALL(*connection_, SendConnectionClose(
QUIC_STREAM_RST_BEFORE_HEADERS_DECOMPRESSED));
EXPECT_FALSE(visitor_->OnStreamFrames(frames));
// The stream should never be opened, now that the reset is received.
EXPECT_EQ(0u, session_->GetNumOpenStreams());
}
TEST_F(QuicServerSessionTest, GoOverPrematureClosedStreamLimit) {
QuicStreamFrame data1(3, false, 0, MakeIOVector("H"));
vector<QuicStreamFrame> frames;
frames.push_back(data1);
// Set up the stream such that it's open in OnPacket, but closes half way
// through while on the decompression blocked list.
session_->CloseStreamOnData();
EXPECT_CALL(*connection_, SendConnectionClose(
QUIC_STREAM_RST_BEFORE_HEADERS_DECOMPRESSED));
EXPECT_FALSE(visitor_->OnStreamFrames(frames));
}
TEST_F(QuicServerSessionTest, AcceptClosedStream) {
vector<QuicStreamFrame> frames;
// Send (empty) compressed headers followed by two bytes of data.
frames.push_back(
QuicStreamFrame(3, false, 0, MakeIOVector("\1\0\0\0\0\0\0\0HT")));
frames.push_back(
QuicStreamFrame(5, false, 0, MakeIOVector("\2\0\0\0\0\0\0\0HT")));
EXPECT_TRUE(visitor_->OnStreamFrames(frames));
// Pretend we got full headers, so we won't trigger the 'unercoverable
// compression context' state.
MarkHeadersReadForStream(3);
// Send a reset.
QuicRstStreamFrame rst(3, QUIC_STREAM_NO_ERROR);
visitor_->OnRstStream(rst);
// If we were tracking, we'd probably want to reject this because it's data
// past the reset point of stream 3. As it's a closed stream we just drop the
// data on the floor, but accept the packet because it has data for stream 5.
frames.clear();
frames.push_back(QuicStreamFrame(3, false, 2, MakeIOVector("TP")));
frames.push_back(QuicStreamFrame(5, false, 2, MakeIOVector("TP")));
EXPECT_TRUE(visitor_->OnStreamFrames(frames));
}
TEST_F(QuicServerSessionTest, MaxNumConnections) {
EXPECT_EQ(0u, session_->GetNumOpenStreams());
EXPECT_TRUE(
QuicServerSessionPeer::GetIncomingReliableStream(session_.get(), 3));
EXPECT_TRUE(
QuicServerSessionPeer::GetIncomingReliableStream(session_.get(), 5));
EXPECT_TRUE(
QuicServerSessionPeer::GetIncomingReliableStream(session_.get(), 7));
EXPECT_FALSE(
QuicServerSessionPeer::GetIncomingReliableStream(session_.get(), 9));
}
TEST_F(QuicServerSessionTest, MaxNumConnectionsImplicit) {
EXPECT_EQ(0u, session_->GetNumOpenStreams());
EXPECT_TRUE(
QuicServerSessionPeer::GetIncomingReliableStream(session_.get(), 3));
// Implicitly opens two more streams before 9.
EXPECT_FALSE(
QuicServerSessionPeer::GetIncomingReliableStream(session_.get(), 9));
}
TEST_F(QuicServerSessionTest, GetEvenIncomingError) {
// Incoming streams on the server session must be odd.
EXPECT_EQ(NULL,
QuicServerSessionPeer::GetIncomingReliableStream(
session_.get(), 2));
}
} // namespace
} // namespace test
} // namespace tools
} // namespace net
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